The weakness resulting from the segmental paresis and paralysis characteristic of anterior horn cell injury is difficult to recognize because:
A) Upper motor neurons are involved.
B) The injury is microscopic.
C) Two or more nerve roots supply each muscle.
D) The person is unable to feel the involved muscles.

Question

Quizplus · Accepted Answer

The paresis and paralysis associated with anterior horn cell injury are segmental; however,because two or more roots supply each muscle,the segmental character of the weakness may be difficult to recognize.The reason this pathophysiologic condition is difficult to recognize is not appropriately explained by any of the other options.

The Weakness Resulting from the Segmental Paresis and Paralysis Characteristic